Window ventilator



lJuly 14, 1931. H. P. FISHER v1,814,590

WINDOW VENTILATOR Filed March 5, 1929 INVENTOR.

A TTORNE YS.

Patented July 14, 1931 yUNITED STATES HARRY 1?. FISHER, OF kSAN FRANCSCO, CALTFORNIA WINDOW VENTILATOKR j Application filed March 5, 1929. Serial 110.344,269;

This invention relates to the type of ventilators that-are adapted to be placed in a window opening and the window closed down thereupon, and particularly to a ventilator 5 which is adapted to be permanently attached to the sillof the windowv so as to be readily swung into'or out ofthe window opening, as

may be required." v

y The object of thepresent invention toV l0 generally improve and'v simplify the construe# tion and operation of window ventilators ;'to'

provide a'ventilator which' maybe fitted to windows of varying widths; to providea ventilatorwhich willintroduce a maximum 15 of air througha minimum of window space dow, so as to be readily swung into or out of` the window opening, as required. 1

The ventilator is shown by way of illustra- 25. tion inthe accompanying drawings, in which;

Fig. 1 is a vertical section of a Window` 10.A The lower edge of the 'end plates 8 are showing the ventilator installed,

Fig. 2 is a perspective view of the window 30 showing the ventilator'installed,

Fig. 3 is a section similarftoy Figi butA showing the screen extended and thewindow lowered,

Fig. 4 is a detailed view of the hinge where- 35' by the screen is secured to the hood of the' the amount of air passing through the screen ventilator.

Referring to the drawings in detail, and.

particularly Figs. 1 and 2,'A, indicates the lower lrail or sash of a window which is` 1G-adapted to be raised and lowered, B the frame in which the window ismounted, and C the window sill. Secured adjacent opposite yends of the window sillare bearing bracketsr 2, and pivotally attached thereto 5 are a pair ofplinks, such as indicated at 3.

Attached to the opposite ends of the links is a hood, generally indicated at D. This hood consistsof a pair of telescoping plates, such as shown at 6 and 7. These plates are provided with end sections 8j The plates telescope Awith relation'to each other, and as such permit the ventilator as a whole to be fitted` to'windows of varying widths. The plates are attached to the upper ends of the links 3, as indicated lat 9, and the hood or plates may thus be swung to assume the extendedA position shown in Fig. 3.

Mounted von the inner or lower surface of the hood D isa spring latch l0. Pivotally secured tothe lower surface of the hood by hinges l1, is a screen plate 12.` This plate` normally assumes the vposition shown in Fig. 1. `In this position the air enters or passes through the screen in thedirection of arrow a and it enters theroom in the direction of arrow the purpose of the screen being mainly that of excluding mosquitoes, flies and other insects. The screen will, of course, retard circulation to some extent and where insects do not bother the screen may be raised to assume the position shown in Fig. 3 and it may there besecured Aby the spring latch provided-with inturned ledges orflanges, such as indicated at 8a. These flanges form a support'for'the free end ofthe screen 12 when in a lowered position.v vThese flanges also form a support for the ventilator as a whole, so as to prevent marring or cutting of the window sill surface. On windy days may be so great as to tend to lift it, thereby permitting a certain amount of insects to enter from time to time, and also produce a rattling or slamming noise. To prevent this, coil springs, such as shown at 14, (see Fig l) may be wound aboutthe screen hinges, these springs having suiicient tension to secure the screen in rigid contact with relation to the inturned flanges 8a, thus preventing any rattling or slamming noise, and also preventing entrace of insects.

In view of the fact that the hood D is longitudinally adjustable it is obvious that the screen l2 will be similarly constructed. That is, it will consist of two overlapping screen sections of the usual construction.

In actual operation, the ventilator is permanently attached to the window ledge or sill C by means of the bearing brackets 2. If the window is closed the ventilator will assume the extended position shown in Fig. 3. On the other hand, if the ventilator is to be used it is pulled inwardly or under the window A so that the window may be closed down on top thereon. In this manner it is clamped between the window and the sill and it furthermore provides an opening through which ample ventilation may be obtained. In fact, a maximum of circulation can be obtained through a comparatively small window opening in this manner, as wind currents striking the surface of a building invariably have a tendency to be deflected in an upward direction. The hood D projecting exterior of the surface of the building deflects the upwardly rushing air inwardly through the window opening, thus insuring a more or less forced circulation, the hood also functioning to exclude rain in stormy weather.

The ventilator as a whole is exceedingly simple and substantial in construction, it may be readily installed in any window opening, and as it is longitudinally adjustable, windows of di'erent widths are taken care of. It may also be readily extended or moved into operative position.

lVhile certain features of the present invention are more or less specifically described, I wish it understood that various changes may be resorted to within the scope of theappended claims, similarly, that the materials and finishes of the several parts employed may be such as the manufacturer may dec-ide, or varying conditions or uses may demand.

Having thus described my invention, what I claim and desire to secure by Letters Patent 1s:

l. The combination with a window frame, its sill, a window vertically slidable in the frame of a hood-shaped ventilator and a link member pivotally connecting the hood to the frame, said link permitting one side of the hood to be swung into the window opening between the sill and the window so as to be secured by the window resting thereon, said hood also adapted to be swung about the link member in an outward direction from the window to permit closing of the window.

2. The combination with a window frame, its sill, a window vertically slidable in the frame of a hood-shaped ventilator, a link member pivotally connecting the hood to the frame, said link permitting one side of the hood to be swung into the window opening between the sill and the window so as to be secured by the window resting thereon, said hood also adapted to be swung about the link member in an outward direction from the window to permit closing of the window, and a screen member secured to |the lower surface of the hood and normally covering the space between the sill and the hood.

3. The combination with a window frame, its sill, a window vertically slidable in the frame of a hood-shaped ventilator, a link member pivotally connecting the hood to the frame, said link member permitting one side of the hood to be swung into the window opening between the sill and the window so as to be secured by the window resting thereon, said hood also adapted to be swung about the link member in an outward direction from 'the window to permit closing of the Window, a screen hingedly attached-to the inside ofthe hood, and means for securing the free side of the `screen in a position substantially parallel to the lower surface of the hood.

4. The combination with a window frame, its sill and a window vertically slidable in the frame of al hood-shaped ventilator, end members on said hood engaging the sides of the window frame, and a pair of links pivotally secured at one end to the window sill and at their oppositeends to the lower side of the hood, said links permitting one side of the hood to be swung into 'the window opening between the sill and window so as to be secured by the window resting thereon, said hood `also adapted to be vswung about the links in kan outward direction away from the window, to permit closing of the Window.

5. The combination with a window frame, its sill and a window vertically slidable in the frame lof a hood-shaped ventilator, end members on said hood engaging the sides of the window frame, a pair of links pivotally secured at one end to the window sill and at their opposite ends to the lower side of the hood, said links permitting one side of the hood to be swung vinto the windowopening Vbetween the sill and window so as to be secured by the window resting thereon, said hood also adapted to be swung about the links in an outward direction away from the window to permit closing of the window, and a screen member secured to the lower surfaceof the hood and normally covering the space between the sill and the hood.

6. The combination with a window frame, its sill and a window vertically slidable in the frame of a hood-shaped ventilator, end members on said hood engaging the sides of the window frame, a pair of links pivotally secured at one end to the window sill and at their opposite ends to the lower side of the hood, said links permitting one side of the hood to be swung into the window opening between the sill and window so as to be secured by the window resting thereon, said hood also adapted to be swung about the links. in an outward direction away from the window to permit closing of the window, a screen member secured t0 'the lower surface of the hood and normally covering the space between the sill and the hood, and a latch member for securing the free side of the screen in a position substantially parallel to the lower surface of the hood.

HARRY P. FISHER. 

